基于Python软件的零序方向数字式继电保护仿真  

Simulation of Zero Sequence Direction Digital Relay Protection Based on Python

作　　者：夏寅宇 丁煜飞 汪缪凡 齐沛锋 XIA Yinyu;DING Yufei;WANG Miaofan;QI Peifeng(Nanjing Institute of Technology,Nanjing 211100,China)

机构地区：[1]南京工程学院,江苏南京211100

出　　处：《电工技术》2022年第18期185-187,共3页Electric Engineering

摘　　要：针对继电保护装置运行故障后,多数情况下不能在现场进行仿真的问题,提出运用PSCAD和Python软件的数字式继电保护仿真方法。在PSCAD软件中搭建双端电源零序电流保护模型,在Python软件中对零序电流的启动元件、方向判别、动作逻辑进行程序设计。仿真结果验证了该保护仿真方法可以有效提高仿真的效率和准确性。In most cases,the simulation cannot be carried out on site after the relay protection device fails.Aiming at this problem,a digital relay protection simulation method combining PSCAD and Python software is proposed.The zero-sequence current protection model of dual-terminal power supply is built in PSCAD,and the starting element,direction judgment and action logic of zero-sequence current are programmed in Python.Simulation results verify its effectiveness,which can effectively improve the efficiency and accuracy of simulation.

关 键 词：数字式继电保护 傅里叶变换 零序方向电流保护 

分 类 号：TM58[电气工程—电器]